| Réponse | Nombre de lettres |
|---|---|
| OCCASIONNELS | 12 lettres |
| OCCIDENTALES | 12 lettres |
| OCCULTERIONS | 12 lettres |
| OCEANOLOGUES | 12 lettres |
| OCTOGENAIRES | 12 lettres |
| ODORIFERANTE | 12 lettres |
| OECUMENICITE | 12 lettres |
| OEDEMATEUSES | 12 lettres |
| OEILSDEBOEUF | 12 lettres |
| OENOTHERACEE | 12 lettres |
| OESOPHAGIENS | 12 lettres |
| OFFICIALISER | 12 lettres |
| OISEAUMOUCHE | 12 lettres |
| OISEAUXLYRES | 12 lettres |
| OLEAGINEUSES | 12 lettres |
| OLIGOELEMENT | 12 lettres |
| OLIGOPHRENIE | 12 lettres |
| OMNIPRESENCE | 12 lettres |
| ONAGRARIACEE | 12 lettres |
| OPALESCENTES | 12 lettres |
| OPERACOMIQUE | 12 lettres |
| OPERATIONNEL | 12 lettres |
| OPPORTUNISME | 12 lettres |
| OPTIONNELLES | 12 lettres |
| ORANGSOUTANS | 12 lettres |
| OREILLEDEMER | 12 lettres |
| ORGANIGRAMME | 12 lettres |
| ORGANISATEUR | 12 lettres |
| ORGANISATION | 12 lettres |
| ORGUEILLEUSE | 12 lettres |
| ORIENTATIONS | 12 lettres |
| ORIENTATRICE | 12 lettres |
| ORNEMENTALES | 12 lettres |
| ORNITHOLOGUE | 12 lettres |
| ORTHOGRAPHIA | 12 lettres |
| ORTHOGRAPHIE | 12 lettres |
| OSCARETFELIX | 12 lettres |
| OSCARISERAIS | 12 lettres |
| OSCILLOMETRE | 12 lettres |
| OSSIFICATION | 12 lettres |
| OSTENTATOIRE | 12 lettres |
| OSTEOPLASTIE | 12 lettres |
| OSTEOSARCOME | 12 lettres |
| OSTRACISERAI | 12 lettres |
| OUTRANCIERES | 12 lettres |
| OUTRECUIDANT | 12 lettres |
| OUTREPASSSER | 12 lettres |
| PACIFICATEUR | 12 lettres |
| PACIFICATION | 12 lettres |
| PAINDABEILLE | 12 lettres |